Alonzo b



(No Model.)

A. B. WOODARD 8u R. W. BARNEY.

VULCANIZING APPARATUS.

Patented Apr. l

UNITED STATES ATENT FFTCE.

1ALONZO B. VOODARD AND RICHARD W. BARNEY, OF. HORNELLSVILLE, N EV` YORK; SAID WOODARD ASSIGNOR TO SAID DARNEY.

vu LcANlzlNe APPARATUS.

SPECIFICATION forming part of Letters Patent No. 424,942, dated April 1, 1890.

Application filed January 13, 1890. Serial No. 336,814. (No model.) i

T all whom it may concern.' engagement of which portions of the lower Beit known that we, ALONZO B. WOODA'RD edge '7, inclosing the channel, are removed and RICHARD W. BARNEY, of -Hornellsville, in over a space equal in length to the length of the county of Steuben and State of New York, the ribs 4, as shown in Fig. 3. By turning the 5 have invented certain new and useful Imflange 6 around until in the position shown in 5 5 proveinents in Vulcanizing Apparatus; and Fig. 3 it may be inserted within the olfsetwe do hereby declare the following to be a full, ring 2 'until it rests on the shoulders 3, whereclear, and exact description of the invention, upon a turn to the right or-left brings the prosuch as will enable others skilled in the art to jecting ribs 7 under the ribs 4 and locks the 1o which it appertains to make and use the same. vessel and cap together. 60 Our in ventionrelates to an improvement in Surrounding the ange 6, above the offsetvulcanizing apparatus. ring 2, is a ring 8, having at its lower edge an It is the purpose of our invention to proangular pocket containing a packing-ring 9, vide simple and novel means whereby the Which'rests upon thexoffset-ring, and is hel flasks may be automatically closed by the against the outer facel of the flange 6 by the 65 pressure of the steam generated within the depending flange 10 on the ring S. r1`he latter flask during the process of vulcanization, to slides upon the flange G, and is raised audlowcombine with the movable cylinder-head simered to engage and disen gage the packing by plc means for locking the same when at its means of screws 12, tapped through lugs 13, 2o lowest point of descent, and to combine with projecting from the cap. The screws are 7o the cover of the vessel suitable devices whereswiveled in these lugs and engage with threadby a steanrtight joint may be formed upon ed recesses in the ring 8. uniting the parts. 5 From the center ofthe flat top of the cap Our invention also contemplates means rises the neck 14, which supports a cylindrical wherebyasteam-joint may be formed between shell 15, having an offset-ring 1G, forming an 75 the body of the vulcanizing-vessel and the reannular pocket 17, within which is placed a movable cap, the' construction being such as packing-'ring 18. This shell, in conjunction to facilitate the ready removal and applicawith the closing-cap 19, forms the cylinder, tion of said cap. Withinwhich is fitted the piston 20, having a l 3o To these ends the invention consists in the tubular. piston-rod 21, which passes down 8o several vnovel features of construction and through the neck 14 4and through a packingcombinations of parts hereinafter described, ring 22, which lies upon an internal collar 23 and pointed out in the claims. of said neck, and is compressed by a nut 24,-

In the accompanying drawings, Figure 1 is having a male thread engaging with a thread 3 5 a central vertical section of-a vulcanizing-veson the interior of the neck. 85 sel and cap illustrating our invention. Fig. The piston 2O is provided with a flange 25,

2 is a horizontal section in line y y of Fig. 1. which drops below and covers the packing- Fig. 3 is a horizontal section of the vessel on ring 18. Closing the steam-chamber is the the line a; of Fig. 1. cap or dome 19,1iaving an externally-threaded 4o A represents the body of the vessel, which ange 27, which enters the pocket 17, engag- 9c is of cylindrical form and has an offset-ring 2 ing with a female thread thereon, and is rising a suitable distance above an interior screwed down upon the packing. The proshoulder 3, formed by said ring. Upon the portions of the parts are such that the pistonupper face of the ring are formed ribs or head is prevented from rising far enough to feathers 4 of equal length and separated from uncover the packing 18. 95 each other by equal intervals. Formed upon the inner face of the flange The numeral designates the cap,which has 25 of the piston are two or more rods or bars a circular ilange 6, provided near its edge with separated from each other by equal intervals, an external groove or channel of such dimenand having their lower ends projecting 5o sions as to receive the ribs 4, to permit the through. openings 28 in the shell 15. As the roc pistondesce'nds under the pressure of steamy permit access tothe nut 24. rlhe thermometer may be attached to the dome or cap.

The mode'ofoperation is as follows: The liasks being arranged within the vessel one upon the other, the'cover is attached, the piston resting upon the upper flask and raised f I as far as it, will go. The packing-ring is adjusted to close the joint and heat is applied in the usual manner. Theste'am generated passes lup through the tubular piston-rod 2l, and exerts its pressure upon the broad top of the piston 20, driving it down and closing the flasks gradually and without obstruction. As the piston descends, Ithe rods attached thereto are projected through the openings 2S in the shell, and the locking-pins 30 may be placed in the holes 29, formed in these rods, to hold the piston permanently at its lowest point.

' Having fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. The c0n1bination,witl1 a vulcanizing-vcssel anda cap, of a piston and a hollow piston-rod passing from the piston into the vulcanizing-vessel, said hollow rod adapted to conduct steam generated during the vulcanizing process from the vulcanizing-vessel and discharge it over the piston, whereby the piston and its rod are antoJnatically-depmssed bythetealn-puilesslllleat the required intervals, substantially as set forth.

2. The combination, with a vulcan izi n g-vessel, a cap, and dome, of a piston fitted in the dome, and a hollow piston-rod passing from the piston into the vulcanizing-vessel, said hollow rod adapted to conduct steam generated during the vulcanizing process from the vulcanizing-vessel and discharge it over the piston, whereby the piston and its rod are automatically depressed at the required intervals, and means for lookin the piston in its depressed position, substantiallyas set forth. 3. The c0mbination,withavuleanizing-vcssel having an odset-ring provided with interior ribs or feathers, of a cap having a tl ange provided with channels adapted to engage with the ribs, an adjustable ring surrounding the flange of the ycap and having a packin g-ring set in an ,angular pocket therein, and

- means for raising and lowering said ring, sub-- stantially as described.

4. The combination, with a vulcanizing-vessel having an offset-ringprovi'ded with ribs, of a cap having a flange engaging said ribs, a ring surrounding and movable upon said flange and having an annular pocket containing packing, and adj listing-screws swiveled in lugs on the cap and engaging threaded recesses in the ring, substantially as described.

5.. A vulcanizing-vessel, the cap whereof is provided with a central neck, a cylindrical shell supported by said neck, and having an offset-ring forming a pocket for packing,in' combination with a cylinder having a flange dropping below said pocket, and a cap having a'threaded fla-nge entering said pocket, the piston having a tubular piston-rod passing through a, packing-chamber in the neck, substantially as described.

(i. In a vulcanizing.- vessel, a steam-chamber in the cap, a piston moving in said chamber and having a flange dropping below the,

pistou-packing, and a tubular piston-rod passing into the vulcanizer, the piston being provided with rods passing through openings in the shell below the piston-packing, said rods having apertures receiving pins which lock th-e piston at its lowest point of descent, substantially as described.

7. In a vulcanizer, the combination, with the removable cap having a central neck, a cylindrical shell supported by said neck, and provided with an internally-threaded offset ring or fiange, of a tubular piston-rod passing through the neck, a packing-ring lying in an internal collar of said neck, a compressing-nut surrounding the tubular piston-rod and engaging the thread in the neck, and a cap or dome having a threaded iang'e engaging the interior thread of the offset-ring, substantially as described.

In testimony whereof we have signed this specification in the presence of two subscribing witnesses.

ALONZO B. WOODARD. RICHARD W. BARNEY.

ll'itnesses:

CLARA M. BARNEY, MARY CASEY. 

